Window mounted air conditioning unit



Jan. 10, 1967 R. BAUMAN WINDOW MOUNTED AIR CONDITIONING UNIT Filed Oct.23, 1965 INVENTOR ROBERT R. BAUMAN GEORGE W. WRKSHBJR.

United States Patent 3,296,820 WINDOW MOUNTED AIR CONDITIONING UNITRobert R. Baurnan, Burlington, Wis. 53105 Filed Oct. 23, 1965, Ser. No.503,220 Claims. (Cl. 62-262) This invention appertains to refrigeratingapparatus, and more particularly to new and useful improvements in awindow mounted air conditioning unit.

It is recognized that applicant is not the first to provide a portableroom air conditioning unit of the type Wherein the evaporator is mountedon the inside of the room to be cooled and the condenser unit is mountedon the outside of the building structure. Conventional window type airconditioning units usually provide a cabinet which is positioned on thewindow sill and protrudes half into the room and half out of the room,and elaborate means have been provided in the past to block off theopenings left between the unit and the casing and sill of the ordinarywindow.

Thus, it has been suggested that advantages could be obtained byseparating the unit into two cabinets, one housing the evaporator unitand the other the condenser unit, and connecting these cabinets by meansof channels and brace members resting on the sill. While this type ofunit presents advantages over the cumbersomeone cabinet style, theinside cabinet is still in the way of drapes and curtains, and furtheris not suited for the horizontal slide-by windows.

It is, therefore, a primary object of my present invention to provide anovel room air conditioning unit that is particularly adapted to be usedwith the vertical slideby windows but which can be readily adapted to beused with horizontal regular window sash construction.

Another important object of my present invention is to provide a novelmeans for mounting a window air conditioning unit wherein the evaporatorunit is positioned inside the room and the condenser unit is positionedoutside of the window and wherein the cabinet structures are completelyclear of the window opening so that curtains and the like can be hungwithout interference with the unit.

A salient feature of my present invention resides in providing a novelair conditioning unit wherein the two cabinets are firmly anchored tothe vertical casing of the window and extend away from the casing andwindow sash construction.

A further object of my present invention is to provide a novel airconditioning unit of the above character wherein channels are secured tothe forward end of each unit and joined by a strong channelled bracingunit which is provided with means for adjusting the space between theunit to compensate for various wall thicknesses.

A more specific object of the present invention resides in providinggrooves or notches in the vertical window casing to receive thechannelled bracing member so that the outer surface thereof lies flushwith the stile to allow vertically moving window sashes to be raised andlowered without interference with the air conditioning units and alsofacilitates the use of the unit with horizontal slide windows.

A further object resides in providing a two cabinet air conditioningunit, one extending into the room and one on the outside thereof whichmay be quickly and easily securely mounted to the vertical windowcasing, and wherein means is provided for sealing the space between thechannel members and the jamb of the window so that in the horizontalslide-by window a complete seal is had whether or not the channel bracemember is received in the grooves or recesses.

A still further object of the invention is to provide a window airconditioning unit which is simple in construc- 3,296,820 Patented Jan.10, 1967 tion, reliable in its operation and not liable to get out oforder.

With the above and other objects in view and to the end of attaining anyother advantage hereinafter appearing, the invention consists in certainfeatures of construction and with the arrangement and combination ofparts hereinafter described, pointed out in the claims and illustratedin the accompanying drawing, in which FIGURE 1 is an elevational view inperspective showing one means for mounting my novel air conditioningunit to the vertical casing of a slide-by window, parts of the windowand sealing means being broken away to illustrate further details in itsconstruction;

FIGURE 2 is a horizontal section through the air conditioning unit andthe respective window and wall construction, taken on the line 2-2 ofFIGURE 1 of the drawings, and looking in the direction of the arrows;

FIGURE 3 is a fragmentary front elevational view of a window opening ina home showing a modified vertical casing wherein the channel bracemembers may be recessed within the stile to particularly adapt the unitfor mounting with vertical sliding sashes, and

FIGURE 4 is a perspective view of one of the channel bracing membersused to adjustably secure the units in place.

Referring now to the drawing in detail, wherein similar referencecharacters designate corresponding parts throughout the several views,the letter C generally indicates my novel air conditioning unit, and thesame includes broadly a housing or cabinet 10 for the evaporator unitand a housing or cabinet 11 for the condenser unit and these units areof the conventional air conditioner window structure except asmentioned, the evaporator portion is mounted in cabinet 10, and thecondenser portion of the system is mounted in cabinet 11. Thus, eachcabinet is substantially rectangular in shape, and each includes top,bottom and side walls 12, a rear wall 13 and front walls 14 and eachcabinet is provided with vanes 15 for the ingress and egress of air, foreither cooling the unit per se or more importantly for conditioning theair within the room properly. To the forward wall 14 of each unit 111and 11 in the preferred form of the invention, I secure by welding orotherwise, aligned box-like channel members 16 and 17 respectively toprovide the upper member 16 and lower member 17 as shown moreparticularly in FIGURE 1 of the drawings. Telescopically received within the aligned upper box-like channel member 16 and within the lowermember 17 is an identically formed chan nel brace member 18 and eachbrace member 18 is substantially rectangular in shape (FIGURE 4), openat each end 19 and the longitudinally extending side walls are providedwith a number of aligned apertures 20 to pro vide for the aforementionedadjustment between the cabi nets 10 and 11. Apertures 20 are provided inaligned vertical rows as shown and between these aligned vertical rowsof apertures 20 are a pair of aligned horizontally positioned apertures21 formed adjacent the axial center of the channel brace member 18. Thetwo horizontally disposed apertures 21 formed on both side walls,receive a pair of bolts or wood screws 22 to firmly secure the members18 to the vertical casing of the window.

In that form of the invention illustrated in FIGURES 1 and 2, the windowconstruction W is of the conventional horizontal sliding sash type, inwhich a pair of sashes 25 and 26 are mounted for horizontal movementbetween the sill 27 and jamb 28 to provide an opening between the sashand a vertical casing 29. In the simplest method for mounting the units,the brace members 18 are secured by the screws 22, as previouslydescribed. The lower brace member 18 is secured so that it rests firmlyon the sill 27 and obviously, the upper brace member 18 is spacedtherefrom so that it will be properly aligned with the box-like channelmembers 16 when the lower members 17 are slipped over the lower bracingmember. Each unit therefore is fitted on the aligned parallel bracingmembers 18 so that its inner side wall rests firmly against the buildingwall structure 30. A pair of vertically aligned bolts are then threadedthrough proper apertures in the box-like members 16 and 17 and throughaligned pairs of apertures in the bracing member 18. Thus, it can beseen that the unit is firmly secured to the vertical casing 29 of thewindow and in this form of the invention sealing strips 31 and 32 areprovided between the jamb and the upper bracing member 18 and betweenthe upper bracing member and its corresponding lower bracing member toseal the closure when sash 26 is brought against the channel members andsealing strips.

The type of refrigeration unit utilized forms no particular part of thispresent invention and may be of any well known construction now on themarket but for purposes of illustration the system basically includes asealed condenser unit 40, the condenser 41, evaporator 42 and fans 43,44 providing the necessary circulation of air. It should also be notedthat the channels provided by basic channel members 18 and alignedintegral channel units 16 and 17 provide means for the connecting lines45 and the necessary wiring etc. It should also be readily apparent thatlines 45 could easily extend through the lower channel members 17 ratherthan the upper channel members 16 as shown, and for purposes of changingthe evaporator unit and especially the cabinet thereof, should it bedesired to utilize different designs from year to year, I may providecouplers in the lines 45. Thus, merely by removing the fastening boltsthe evaporator unit can be removed and another unit of different designquickly secured in place leaving the major components of the noisycondenser unit primarly in the outside cabinet 11. Depending on the sizeof the unit needed, the basic channel member provided by the bracemember 18 can be of any desired dimensions but preferably as shown, itis rectangular in shape, and approximately 4" wide. It can therefore beseen that at the most, the installation of my novel unit will take upnot more than 4" of window space and in most cases a 2" wide bracemember can be used. If desired, I may notch the vertical casing 29 tocompletely receive each channel brace member 18 and thus no actualwindow space will be used. In this regard, attention is directed toFIGURE 3 of the drawing, wherein my unit may be mounted in a windowconstruction of the horizontal sliding sash type, and thus the windowopening includes broadly a sill 47, horizontally sliding sash 48 andvertical casing 49. In the vertical casing 49 I provide the alignednotches or grooves 50 and 51 respectively, and these are of a size andconfiguration to snugly receive the basic channel supporting members 18in such a manner that the horizontally sliding sash can be completelyclosed and will readily move past the entire unit. In this installation,it can be seen that no window space is needed and the entire windowopening can be effectively utilized.

From the foregoing, it is believed that the features and advantages ofmy invention will be readily apparent to those skilled in the art andthat I provide a window air conditioning unit which is stable, and whichwill not fall out of the window and will not interfere with the openingand closing of either horizontal or vertical sliding sash windows. Mydevices save valuable window space and give an unobstructed view, andalso allow the complete closing of curtains and drapes. Window screensand storms can be left in place without appreciable modification and thenoisy condenser unit is completely out of the room.

While I have shown and described certain specific embodiments of myinvention, it will be understood that these are merely for the purposeof illustration and description, that various other forms may be devisedand that changes may be made in the proportions and minor details ofconstruction, without departing from the spirit of the invention orscope of the appended claims.

What is claimed as new is:

1. A room air conditioning unit adapted to be mounted on the verticalcasing of a window frame having a slidable sash, including two separatecasings, one casing housing the evaporator unit of a refrigerationapparatus, the other casing housing the condenser unit thereof, eachcasing being substantially rectangular in shape to provide side bottomtop front and rear walls, provided with suitable openings for thecirculation of air, a box-like elongated channel member secured to thefront wall of each casing having an open end in alignment one with theother, a substantially rectangularly shaped channeled brace memberadapted to be slidably received within said open boxlike channel member,means for adjustably securing said channelled brace member to arespective portion of a respective channel member, the connecting linesand wiring for said refrigeration apparatus adapted to extend throughsaid channel openings, and means for securing said brace member to saidvertical window casing with the evaporator unit casing being positionedin the room and the condenser unit casing outside of the room.

2. A room air conditioning unit as set forth in claim 1, wherein a pairof spaced parallel box-like channel members are secured to each frontWall of each casing, and a pair of brace channel members are providedeach received within a respective aligned channel member.

3. A room air conditioning unit as set forth in claim 1, wherein saidadjustable means for securing said channelled brace member to saidvertical window casing includes rows of spaced apertures through alignedwalls of said rectangularly shaped brace member, and bolts receivedthrough respective portions of said channel members and through a pairof aligned apertures in said channeled brace member.

4. A room air conditioning unit as set forth in claim 1, wherein saidmeans for securing said channelled brace member and said airconditioning unit to said vertical casing of said frame includes a pairof spaced grooves in said vertical casing of a size and configuration toreceive a respective portion of said channelled brace member.

5. A room air conditioning unit as set forth in claim 1, wherein saidcasing units are extending away from said window frame opening andwherein said evaporator casing unit is of a smaller dimension than saidcondenser casing unit,

References Cited by the Examiner UNITED STATES PATENTS 2,320,436 6/1943Hull 62-262 3,176,474 4/1965 Abbott 62262 WILLIAM J. WYE, PrimaryExaminer,

1. A ROOM AIR CONDITIONING UNIT ADAPTED TO BE MOUNTED ON THE VERTICALCASING OF A WINDOW FRAME HAVING A SLIDABLE SASH, INCLUDING TWO SEPARATECASINGS, ONE CASING HOUSING THE EVAPORATOR UNIT OF A REFRIGERATIONAPPARATUS, THE OTHER CASING HOUSING THE CONDENSER UNIT THEREOF, EACHCASING BEING SUBSTANTIALLY RECTANGULAR IN SHAPE TO PROVIDE SIDE BOTTOMTOP FRONT AND REAR WALLS, PROVIDED WITH SUITABLE OPENINGS FOR THECIRCULATION OF AIR, A BOX-LIKE ELONGATED CHANNEL MEMBER SECURED TO THEFRONT WALL OF EACH CASING HAVING AN OPEN END IN ALIGNMENT ONE WITH THEOTHER, A SUBSTANTIALLY RECTANGULARLY SHAPED CHANNELED BRACE MEMBERADAPTED TO BE SLIDABLY RECEIVED WITHIN SAID OPEN BOXLIKE CHANNEL MEMBER,MEANS FOR ADJUSTABLY SECURING SAID CHANNELLED BRACE MEMBER TO ARESPECTIVE PORTION OF A RESPECTIVE CHANNEL MEMBER, THE CONNECTING LINESAND WIRING FOR SAID REFRIGERATION APPARATUS ADAPTED TO EXTEND THROUGHSAID CHANNEL OPENINGS, AND MEANS FOR SECURING SAID BRACE MEMBER TO SAIDVERTICAL WINDOW CASING WITH THE EVAPORATOR UNIT CASING BEING POSITIONEDIN THE ROOM AND THE CONDENSER UNIT CASING OUTSIDE OF THE ROOM.